Cornerstone is a residential community in Jacksonville, Florida's largest city by land area, spread across Duval County on both banks of the St. Johns River. Jacksonville's neighborhoods range from historic streetcar suburbs near downtown to planned subdivisions at the county edges, all tied together by the river, its bridges, and corridors such as I-95 and I-295. Cornerstone belongs to that broad residential landscape, offering a neighborhood setting within reach of the city's employment centers, shopping districts, and public schools in Duval County Public Schools. The riverfront downtown, the beaches to the east, and the parks and nature preserves scattered across the county are part of the wider life around the community. Browse current Cornerstone homes for sale below to see what is available here.